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Development of Catalysts for Polymer Degradation and Their Application to Plastics Recycling and Hydrogen Production

Development of Catalysts for Polymer Degradation and Their Application to Plastics Recycling and Hydrogen Production
聚合物降解催化剂的研制及其在塑料回收和制氢中的应用
批准号:
12650772
负责人:
UEMICHI Yoshio
金额:
$0.64万
依托单位国家:
日本
项目类别:
Grant-in-Aid for Scientific Research (C)
财政年份:
2000
资助国家:
日本
项目状态:
已结题
起止时间:
2000 至 2001

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中文摘要
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英文摘要
H-gallosilicate, gallium oxide supported on FSM-16, and H-borosilicate have been developed as catalysts for chemical recycling of polyolefins by degradation into useful petrochemical feedstocks.The gallosilicate showed a high activity for the coproduction of hydrogen and aromatic hydrocarbons, mostly benzene, toluene, and xylenes (BTX), from the degradation of low- and high-density polyethylene and polypropylene. The hydrogen and BTX yields increased with reaction temperature and went up to over 3 and 55 wt% at 500 ℃, respectively. The product distribution was influenced little by the structure of the polyolefins to be degraded. This can be explained by a mechanism involving frequent skeletal isomerization of the decomposed fragments.A high hydrogen yield of 4.5 wt%, the value of which corresponds to 32 % of the moles of hydrogen being contained in the polyolefins, was obtained when Ga/FSM-16 was used as a catalyst, although the yield of aromatics was reduced because of their transformation into carbonaceous materials on the catalyst surface.H-borosilicate was found to be a catalyst that can break down polyolefins into lower molecular weight olefins. Propylene and butenes were the main products and their yields increased with reaction temperature, while paraffins and aromatics were obtained in limited amounts. Almost the same product distributions were observed from the degradation of the three polyolefins.These results indicate that the developed technologies using gallium and boron catalysts are highly promising as new options for chemical recycling of polyolefins.
期刊论文(12)
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会议论文
上道芳夫: "廃プラスチックからの水素の回収"化学工業. 56,(10). 786-791 (2002)
Yoshio Kamimichi:“从废塑料中回收氢”Kagaku Kogyo,56,(10)(2002)。
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K. Takuma: "A Novel Technology for Chemical Recycling of Low-Density Polyethylene by Selective Degradation into Lower Olefins Using H-Borosilicate as a Catalyst"Chemistry Letters. 4. 288-289 (2001)
K. Takuma:“使用 H-硼硅酸盐作为催化剂,通过选择性降解为低级烯烃来化学回收低密度聚乙烯的新技术”化学快报。
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Kazuhiko Takuma: "A Novel Technology for Chemical Recycling of Low-Density Polyethylene by Selective Degradation into Lower Olefins Using H-Borosilicate as a Catalyst"Chemistry Letters. (4)(in press). (2001)
Kazuhiko Takuma:“使用 H-硼硅酸盐作为催化剂,通过选择性降解为低级烯烃来化学回收低密度聚乙烯的新技术”化学快报。
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11
    Development of New Technology for Chemical Recycling of Waste Plastics Using Polyolefin-derived Hydrogen
    • 批准号:
      15K00597
    • 项目类别:
      Grant-in-Aid for Scientific Research (C)
    • 资助金额:
      $3.08万
    • 财政年份:
      2015
    • 负责人:
      UEMICHI Yoshio
    • 依托单位:
    Development of Catalytic Hydrogen Transfer Process for Chemical Recycling of Waste Plastics
    • 批准号:
      24510090
    • 项目类别:
      Grant-in-Aid for Scientific Research (C)
    • 资助金额:
      $3.49万
    • 财政年份:
      2012
    • 负责人:
      UEMICHI Yoshio
    • 依托单位:
    Development of High Performance Catalyst for Degradation of Waste Plastics to Petrochemicals
    • 批准号:
      21510077
    • 项目类别:
      Grant-in-Aid for Scientific Research (C)
    • 资助金额:
      $3.0万
    • 财政年份:
      2009
    • 负责人:
      UEMICHI Yoshio
    • 依托单位:
    Development of Chlorine Tolerant Degradation Catalyst forConverting Waste Plastics into Petrochemicals
    • 批准号:
      19510078
    • 项目类别:
      Grant-in-Aid for Scientific Research (C)
    • 资助金额:
      $2.91万
    • 财政年份:
      2007
    • 负责人:
      UEMICHI Yoshio
    • 依托单位:
    海外基金